Veterinary instrument.



' Nn.-63|,646. Patented Aug. 22, |899; J. LAUEB. VETERINAHY'INSTRUMENT,(Application filed Sept. 14', 1898.) (No Model.)

THE NoRRls FUER: co., PHoTb-LIYHO., WASHINGTON, D. C.

UNITED .STATES .PATENT OFFICE.

JOHN LAUER, OF MOODYVILLE, KANSAS.

VETERINARY INSTRUMENT.

SPECIFICATIONforming part of Letters Patent N o. 631,646, dated August22, 1899., I Application iiled September 14, 1898. Serial No. 690,970.(No model.) 4

To all whom, it may concern.-

Be it known that I, JOHN LAUER, a citizen of the United States, residingat Moodyville, in the county of Pottawatomie and State of Kansas, haveinvented a new and useful Veterinary Instrument, of whichY the followingis a specification.

My invention relates to veterinary instruments, and particularly to adevice for removing obstacles from the throats'of cattle; and the objectin view is to provide an apparatus of this class whereby obstacles inthe throats of cattle may be dislodged ldownwardly or inwardly, and,furthermore,`to provide a device of such a construction as to relievethe stomachs of cattle suffering from wind-colic and analogouscomplaints.

Further objects and advantages of this Ainvention will appear in thefollowing description and the novel features thereofA will beparticularly pointed out in the appended claim. Y

In the drawings, Figure l is a view of an instrument constructed inaccordance with my invention applied in the operative position. Fig.2.is a detail view in perspective of the apparatus. Fig. 3is a partialsectional view of the same.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

The device embodying my invention consists, essentially, of a pliabletube 1, of rubber or analogous material of sufficient iiexibility toallow it to curve and accurately follow the curvature of the throat oralimentary canal of the animal, while sufficiently stift to resisttransverse compression by the walls of the throat, and also to enablethe operator by pushing axially thereon to advance the inner end towardthe stomach of the stock. Carried by this tube at one end is a tip 2,also of tubular construction and having lateral and terminal vents 3 incommunication with the bore of the'tube, the outer extremity of said tipbeing preferablyconcaved or dshed to form a cup, whereby in dislodgingan obstacle from the throat of an animal the cup end may be brought intocontact with the obstacle and insure the downward or inward movementthereof when the operator advances the tube inwardly. I also preferablyserted. A v piece constitutes a gag and prevents the aniattach aterminally-converted tip 4. to the `other end of the tube, the samebeing p rovided with lateral and terminal vents 5,'and it will beunderstood that either tip may be used for insertion into the throat ofthe* animal `to dislodge an obstacle' and that while one tip is insertedthe other` provides for the free passage of air into and out of thetube. I preferably construct the tips of hard rubber or equivalentmaterial, and in order that an efficient connection between the same andthe tubing may be secured I employ intermediate couplings 6, also ofhard rubber or the equivalentthereof, said couplings being provided withnipples for insertion into the ends of the rubber tubing and to whichsaid rubber tubing may be permanently attached. The couplings are alsopreferably provided with sockets for the reception of reduced portionsof nipples 7 on the tips.

In connection withA the abovedescribed members of the apparatus I employa mouthpiece 8, consisting of a cross head or block,

fastening devices, such as a buckle l1 and tongue-perforations l2. Theobject of this fastening device is to secure the mouthpiece in the mouthof the animal, and in the center of the mouthpiece is formed aguide-perforation 13, through which the tubing is in- It will beunderstood that the mouthmal frompclosingthe teeth upon the rubber'tubing and otherwise interfering with the manipulation of the device.

It will be understood from the foregoing description that the apparatusembodying my invention is designed to dislodge an obstacle downwardly orinwardly, and this operation is preferable in the first place because itcan usually be accomplished with greater facility than a dislodgmentupwardly or outwardly in that it is not necessary to engagethe apparatuswith the obstacle. It frequently happens that the obstacle is of such amaterial IOO as to make it diiiicult to accomplish asufficientlypositivc engagement to enable the operator to withdraw itoutwardly from the throat, and to remove it piecemeal occupies aconsiderable length of time and the animal is liable to succumb fromloss of breath or otherwise before the object is accomplished.Furthermore, the obstacle can be more readily displaced inwardly ordownwardly than in the opposite direction, and when it reaches thestomach of the animal it is not liable to cause furtherinconvenience.IIence the necessity for entirely removing the same is avoided.Furthermore, by providing an instrument adapted to move an obstacleinwardly or downwardlyI am enabled to use a flexible tubing adapted forclosely following the curvature of the passage through which it passesand avoid the use of a sharp or rough tip liable to abrade the walls ofthe passage. I have found in practice that sufficient force can beapplied to a tubing of first-quality hose to dislodge any obstacle fromthe throat of an animal without inconvenience to the latter, and evenshould the operation occupy a considerable length of time I haveprovided for the continuous breathing of the animal, and hence for thesuccessful termination of the operation. The air passage or canal in theinstrument is continuous, one end thereof being permanently outside ofthe mouth of the animal, and it will be understood that the access ofair facilitates the inward dislodgment of the obstacle. Obviously as theobstacle moves inwardly it will necessitate an in Ilux of air to occupythe space vacated thereby, and this air is supplied through the tubing.

A further advantage of the construction described residesints use inconnection with cattle suffering from bloat or wind-colic. Byintroducing one end of the tubing into the stomach of the animal adirect outlet is provided for the wind and the relief is immediate.

It will be understood, furthermore, that various changes in the form,proportion, and the minor details of construction maybe resorted towithout departing from the spirit or sacriiicing any of the advantagesof this invention.

Having described my invention, what I claim is- In a Veterinaryinstrument, the combination with a gag comprising a central perforatedportion and having diminished ends provided wit-hattaching-strapspivoted thereto to permit a rocking motion of the gag with respect tothe straps, and a flexible and extensible tube slidably mounted in saidperforation and having terminal tips provided with axial and radialopenings, one of said tips having a concaved end and the other tiphaving a convex end.

In testimony that I claim the foregoing asl myown I have hereto affixedmy signature in the presence of two witnesses.

JOHN LAUER. lVitnesses:

Lo'rTIE A. SCRITCHFIELD, Gnoncn 'll/muv.

